I've started thinking about this lately, and I've decided to add something else to my already-too-full Forza plate. There are 30 cars in the game that are region-specific. I've decided to try each of them out and see what happens. I already have the North America cars, and the others are easy to get; the AH is always open, after all. This first post just has a list for reference. I'll be avoiding the muscle cars, since I think we've all explored those pretty thoroughly, having four different specs for racing them in the different classes and all. That leaves:
Europe
Level 5- 1961 Jaguar E-type S1
Level 10- 1974 Lancia Stratos HF Stradale
Level 15- 1982 Porsche 911 Turbo 3.3
Level 20- 1989 Lotus Carlton
Level 25- 1987 Porsche 959
Level 30- 1998 Ferrari F355 Challenge
Level 35- 2005 Porsche #3 Lechner Racing School Team 1 911 GT3 Cup
Level 40- 2005 BMW Motorsport #2 BMW Motorsport M3-GTR
Level 45- McLaren #41 Team McLaren F1 GTRL
Level 50- Audi #1 Infineon Audi R8
Asia
Level 5- 1969 Nissan Fairlady Z 432R
Level 10- 2004 Mitsubishi Lancer Evolution VIII MR
Level 15- 1998 Subaru Impreza 22B STi
Level 20- 2002 Nissan Skyline GT-R V-Spec II Nur
Level 25- 2002 Mazda RX-7 Spirit R Type-A
Level 30- 2005 Honda NSX-R GT
Level 35- 2003 Subaru #77 CUSCO SUBARU ADVAN IMPREZA
Level 40- 2006 Toyota #25 ECLIPSE ADVAN SUPRA
Level 45- 1998 Nissan #32 NISSAN R390 GTI
Level 50- 1999 Toyota #3 Toyota Motorsports GT-ONE TS020
North America
Level 5- 1968 Shelby Mustang GT-500KR (likely to be ignored)
Level 10- 1969 Dodge Charger R/T-SE (likely to be ignored)
Level 15- 1970 Chevrolet Chevelle SS-454 (likely to be ignored)
Level 20- 2000 Ford Mustang Cobra R
Level 25- 1996 Chevrolet Corvette Grand Sport
Level 30- 1999 Dodge Viper GTS ACR
Level 35- 2005 Chevrolet #31 Whelen Enigneering Corvette Z06
Level 40- 2005 Panoz #51 JML Team Panoz Esperante GTLM
Level 45- 2002 Saleen #11 Graham Nash Motorsport S7R
Level 50- 2002 Cadillac #6 Team Cadillac NorthStar LMP-02'
For the non-R cars, the process will be pretty detailed.
1. Drive the cars stock. I'll drive a car on a few different tracks stock, getting a feeling for what it does well and poorly. After that, I'll focus on what it does well. I'll pick a few tracks (possibly using the power vs. twisty vs. flowing approach, possibly not) and go from there. This is also where I'll make my best guess as to where the car will fit.
2. Upgrades! I'll try a few different upgrade paths, but the basics will be set in stone pretty early. If I decide to go grip, for example, I'll be sticking with slicks, just changing to something stickier and thinner or slippery-er (

) and wider. This will mean more driving. I'll also be making adjustments to my original choice of class after learning what the upgrades "cost" in PI.
3. Tune! I'll probably start with a blooze toon on the front-engine, RWD cars. On AWD cars, I'll probably work from principals I've picked up from Ske's universal FF tune and Audi TT (though I had to change several things to make it work for me).
4. Rinse and repeat. Obviously, I'll be struggling with some of these, trying to figure out when I'm "done." I'll try to limit myself to a couple of iterations of the process, though.
Well, there we go. Any suggestions on the methodology? Any ideas for the first car to take out to try? I'd really like to do something un-American for my first foray. I've already got the Lancia and Jag from when I started working on the Tiny Terror spec.